|Welcome to Arnoldsat.com - Dreambox||Today is|
The Dreambox is a Linux-based DVB receiver with Conditional Access capabilities.
There are tuners available for satellite, terrestrial and cable digital television. It is produced by the German company Dream Multimedia. Its firmware is officially user-upgradable, since it is a Linux-based computer, as opposed to third-party "patching" of alternate receivers.
All units support Dream's own DreamCrypt conditional access (CA) system, with software-emulated CA Modules (CAMs) available for many alternate CA systems. The Dreambox is very similar to the DBox2 units distributed by Kirch Media for its pay-TV services before its bankruptcy. It uses the same Linux-based software originally developed for the DBox2. The built-in Ethernet interface allows networked computers to access the recordings on the internal hard disks on some Dreambox models. It also enables the receiver to store digital copies of DVB transport streams on networked filesystems or broadcast the streams as IPTV to VideoLAN clients. Unlike many PC based PVR systems that use free-to-air type of DVB receiver cards the built-in conditional access allows receiving and storing encrypted content. Last but not least, the ethernet interface makes it possible to connect to the built-in web interface. If the dreambox is connected to the internet this means it can be controlled from any PC in the world!
The incredible list of Dreambox DM7020 features:
There have been a number of different models of Dreambox available. The numbers are suffixed with -S for Satellite, -T for Terrestrial and -C for Cable.
This is the long-awaited high definition PVR. Like the DM7025, it supports pluggable tuner modules. In addition to High Definition, it could also have a DVD drive(slot in). And it has USB 2.0. Physically on the box it has one DVI-port, but with the supplied DVI to HDMi Cable you get HDMI.
This product was originally announced to be available in the beginning of 2007, but its release date slipped. The actual release day was 12.12.2008. The planned features were revised as well. Originally, this model was supposed to have 128 MB of RAM (now 256), 32 MB of flash (now 256 MB) and a 300 MHz processor (now 400 MHz Broadcom 7400). Other Linux-based HD receivers became available in the meantime.
The DM7000 is based around the IBM STB04500 controller, featuring a PowerPC processor subsystem and hardware MPEG decoding, has 64 MB of RAM, 8MB of NOR flash memory (directly executable), a Common Interface slot, a dual smart card reader, a Compact Flash card reader, a USB 1.1 port, and an PATA (a.k.a. IDE) interface for attaching an internal 3.5" hard disk drive to convert the unit into a digital video recorder. Accepts only 220V AC power.
Because the boot loader resides in flash memory, this model may require the use of a JTAG in case of bad flashing which destroyed the boot loader. However, a bad flash will occur under rare scenarions, and rarely - near never will you need a JTAG.
The DM7025 is essentially a DM7020 with the ability to add a second "snap-in" tuner that makes it possible to watch one programme while recording another. It features a Xilleon 226 system-on-a-chip from ATI, integrating a 300 MHz MIPS CPU core instead of the traditional PowerPC found in other models, and has 128 MB of RAM.
The DM7020 is essentially an updated DM7000 with 96 MB of RAM, 32 MB of NAND flash (disk-like) and an RF modulator. Changes were also made on the software side, utilising Open Embedded for the base Linux operating system.
Because the flash memory of this model is not directly executable, the primary boot loader resides in ROM and can recover corrupted secondary boot loader in flash by loading from the serial port.
There was a DM5600 and also a DM5620 model. The only difference being that the DM5620 included an ethernet port. Otherwise, the DM56X0 models were a cut down version of the DM7000 without an IDE interface. They did, however, include an RF modulator allowing them to be used with older TVs that lack a SCART connector.
DM500 (discontinued), DM500+ (discontinued), DM500HD
The DM500 is the successor to the DM5620 and is the smallest and cheapest Dreambox. It is based around an IBM STBx25xx Digital Set-Top Box Integrated Controller, featuring notably a 252 MHz PowerPC processor subsystem, hardware MPEG 2 video and audio decoding and smart card interfaces. The DM500 features 32 MB of RAM and an unspecified amount of Flash memory, probably 8 MB, given that firmware images are about 5 MB. It has the standard features of a free-to-air (FTA) satellite receiver, plus extensive Fast Ethernet networking connectivity and a single smart card reader. It does not feature a 7-segment LED display, normally found in other FTA decoders.
Also has the ability to be used on Digital satellite, cable and terrestrial broadcasts (also known as DVB-S, DVB-C, DVB-T).
Counterfeit versions of the DM500-S are wide spread and are often sold at a price close to the original. As a result, Dream Multimedia introduced the DM500+, with changes to try to prevent further counterfeiting. The DM500+ model has 96 MB of RAM instead of 32, and 32 MB of NAND flash instead of 8 of NOR flash. This makes it similar to the DM600 PVR model. It is only available in DVB-S versions.
There also exist legal clones, built around the same commodity IBM SoC chip and hence having identical or slightly superior features but not sold under the Dreambox brand name, eg. the Envision 500S (with 48 megabytes of RAM instead of 32, also available in a 500C cable version), the Eagle box or the Linbox 5558. They have a retail price approaching the one of non-Linux receivers, generally a fraction of the Dreambox 500 price.
In April 2008, Dream Multimedia introduced a Time Bomb into their latest flash to disable the boot loader on counterfeit models. An unofficial firmware group called Gemini who used the latest flash drivers in their firmware, found that flash corruption would be caused on clone DM500-S receivers. Other developers of unofficial firmware groups would find boxes to be effected by this if they use the latest drivers, providing another time bomb is to be introduced.
This is essentially a high definition version of the DM600, featuring a single pluggable DVB tuner (S/S2, C or T), a 300 MHz MIPS processor, 64 Mbytes of Flash memory, 256 Mbytes of RAM and room for an internal SATA 2.5" disk.
It also features one DVI to HDMi Cable, two USB 2.0, one eSATA and one 10/100 Mbit/s Ethernet interfaces.
It has an OLED display.
The DM600 is the same small size as the DM500 but includes an IDE interface allowing to add an internal 2.5" laptop-type hard disk drive. On the outside it adds an S-Video output connector and an analog modem port. It is built around the same IBM STBx25xx integrated controller, but features 32 MB of flash and 96 MB of RAM, of which 64 MB are user-accessible. It is possible to change the tuner module, selecting between Satellite, Terrestrial and Cable versions. There is still just one SCART connector and no 7-segment LED display, just 2 status LEDs. The provided remote control unit is fancier and allows to control the TV set as well.
The Linux-based software used by Dreambox was originally developed for DBox2, by the Tuxbox project. The Dbox2 was a proprietary design distributed by Kirch Media for their pay TV services. The bankruptcy of Kirch Media flooded the market with unsold boxes available for Linux enthusiasts. The Dreambox shares the basic design of the DBox2, including the Ethernet port and the PowerPC processor.
The factory-installed distribution on the Dreambox is mostly available under the GNU General Public License (GPL) and uses standard Linux API's, including Linux DVB API and Linux Infrared Remote Control (LIRC). This configuration encourages enthusiasts to modify its functions, particularly in the form of so-called images such as Gemini, Neutrino, Colosseum, BoxMan, DreamForum, iCVS, LT, Merlin, MiLo, Nabilosat, NewNigma2, OoZooN, Peter Pan, PLi, OpenPLi, Ronaldd and Sif
The Dreamcypt conditional access system is present in every dreambox. In addition, unofficial third-party conditional access software modules (CAMs or emulators) are widely circulated on the Internet that emulate CA systems. In total the dreambox is capable of decrypting the following:
In addition, unofficial third-party conditional access software modules (CAMs or emulators) are widely circulated on the Internet. Many Dreambox owners use these softcams in conjunction with card sharing software to access pay TV services without a subscription card inserted in every connected box. This practice may be illegal in some jurisdictions.
|The content on this website is protected by copyright. All rights reserved.